When sending a message through Gmail, you have many different options on how to customize it, with things like,
attachments, font styles, and paragraph formats.
Add attachments, emphasize key points with font styles, include different kinds of recipients, and more—right in the compose window.
Use to change the font styles (font, size, bold, color, alignment, bullets, indents).
Use to insert an attachment.
Use to insert a file from Drive.
Use to add images.
Use to add links.
Use to delete.
Use for more options.